NR-505 ADVANCED RESEARCH EXAM 1 QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | LATEST EXAM UPDATE 2026/2027 CHAMBERLAIN UNIVERSITY.
Core Domains
Quantitative Research Designs and Validity
Qualitative Research Designs and Approaches
Evidence-Based Practice and Translational Science
Research Ethics and Regulatory Compliance
Sampling Techniques and Power Analysis
Data Collection Methods and Measurement
Statistical Analysis and Interpretation
Critical Appraisal of Research Literature
Mixed-Methods Research
Scholarly Inquiry and Dissemination
Introduction
This comprehensive examination is designed to assess advanced knowledge and critical thinking skills in nursing
research methods and evidence-based practice. The exam covers foundational theories, applied professional
knowledge, regulatory and legal compliance, ethics, and professional standards through multiple-choice questions
and real-world scenarios. Each question emphasizes real-world application and clinical decision-making,
preparing the advanced practice nurse to critically appraise research, translate evidence into practice, and uphold
,the highest standards of scholarly inquiry. This assessment serves as a rigorous evaluation of competency in
advanced research methods essential for doctoral-level nursing practice.
SECTION ONE: QUESTIONS 1–100
1. A researcher is planning a study to evaluate the effectiveness of a new wound care protocol on healing
rates in diabetic patients. Which research design would provide the highest level of evidence for establishing
causality?
A. Case-control study
B. Randomized controlled trial (RCT)
C. Cross-sectional study
D. Qualitative phenomenological study
🟢B
🔴 RATIONALE: The randomized controlled trial (RCT) is considered the gold standard for establishing causality
because it includes randomization, control groups, and manipulation of the intervention, which minimizes bias
and confounding variables. Case-control and cross-sectional designs are observational and cannot establish
causality. Qualitative designs explore experiences but do not test causal relationships.
2. A nurse researcher is conducting a phenomenological study to understand the lived experience of patients
with chronic heart failure. Which data collection method is most appropriate for this design?
A. Standardized questionnaires
B. In-depth, semi-structured interviews
,C. Physiological measurements
D. Chart reviews
🟢B
🔴 RATIONALE: Phenomenology seeks to understand the essence of lived experiences through rich, detailed
narratives. In-depth, semi-structured interviews allow participants to describe their experiences in their own
words, which is the hallmark of phenomenological inquiry. Standardized questionnaires and physiological
measurements are more aligned with quantitative designs.
3. The Belmont Report established three core ethical principles for research involving human subjects. Which
of the following is NOT one of these principles?
A. Respect for persons
B. Beneficence
C. Justice
D. Nonmaleficence
🟢D
🔴 RATIONALE: The Belmont Report identifies three core principles: respect for persons (autonomy),
beneficence (maximizing benefits and minimizing harms), and justice (fair distribution of benefits and burdens).
Nonmaleficence, while an important ethical principle in healthcare, is not one of the three primary principles
outlined in the Belmont Report.
4. A researcher is conducting a study with a sample size of 200 participants. Which type of sampling method
involves selecting participants based on their availability and willingness to participate?
, A. Simple random sampling
B. Stratified random sampling
C. Convenience sampling
D. Purposive sampling
🟢C
🔴 RATIONALE: Convenience sampling involves selecting participants who are readily available and willing to
participate. This method is common in nursing research due to practical constraints but is prone to selection
bias. Simple random and stratified random sampling are probability methods that enhance generalizability.
Purposive sampling is a non-probability method where participants are selected based on specific
characteristics.
5. In quantitative research, the term "internal validity" refers to:
A. The extent to which findings can be generalized to other populations
B. The degree to which the results are due to the independent variable and not confounding factors
C. The consistency and stability of measurement
D. The accuracy of the measurement instrument
🟢B
🔴 RATIONALE: Internal validity is the degree to which we can attribute the observed effects to the
independent variable rather than to extraneous or confounding variables. External validity (A) refers to
generalizability. Reliability (C) refers to consistency, and accuracy (D) is related to validity but is not the
definition of internal validity.
6. A nurse practitioner is appraising a qualitative study on the experiences of caregivers of Alzheimer's
patients. Which criterion is most appropriate for evaluating the trustworthiness of this study?
RATIONALES 2026 Q&A | LATEST EXAM UPDATE 2026/2027 CHAMBERLAIN UNIVERSITY.
Core Domains
Quantitative Research Designs and Validity
Qualitative Research Designs and Approaches
Evidence-Based Practice and Translational Science
Research Ethics and Regulatory Compliance
Sampling Techniques and Power Analysis
Data Collection Methods and Measurement
Statistical Analysis and Interpretation
Critical Appraisal of Research Literature
Mixed-Methods Research
Scholarly Inquiry and Dissemination
Introduction
This comprehensive examination is designed to assess advanced knowledge and critical thinking skills in nursing
research methods and evidence-based practice. The exam covers foundational theories, applied professional
knowledge, regulatory and legal compliance, ethics, and professional standards through multiple-choice questions
and real-world scenarios. Each question emphasizes real-world application and clinical decision-making,
preparing the advanced practice nurse to critically appraise research, translate evidence into practice, and uphold
,the highest standards of scholarly inquiry. This assessment serves as a rigorous evaluation of competency in
advanced research methods essential for doctoral-level nursing practice.
SECTION ONE: QUESTIONS 1–100
1. A researcher is planning a study to evaluate the effectiveness of a new wound care protocol on healing
rates in diabetic patients. Which research design would provide the highest level of evidence for establishing
causality?
A. Case-control study
B. Randomized controlled trial (RCT)
C. Cross-sectional study
D. Qualitative phenomenological study
🟢B
🔴 RATIONALE: The randomized controlled trial (RCT) is considered the gold standard for establishing causality
because it includes randomization, control groups, and manipulation of the intervention, which minimizes bias
and confounding variables. Case-control and cross-sectional designs are observational and cannot establish
causality. Qualitative designs explore experiences but do not test causal relationships.
2. A nurse researcher is conducting a phenomenological study to understand the lived experience of patients
with chronic heart failure. Which data collection method is most appropriate for this design?
A. Standardized questionnaires
B. In-depth, semi-structured interviews
,C. Physiological measurements
D. Chart reviews
🟢B
🔴 RATIONALE: Phenomenology seeks to understand the essence of lived experiences through rich, detailed
narratives. In-depth, semi-structured interviews allow participants to describe their experiences in their own
words, which is the hallmark of phenomenological inquiry. Standardized questionnaires and physiological
measurements are more aligned with quantitative designs.
3. The Belmont Report established three core ethical principles for research involving human subjects. Which
of the following is NOT one of these principles?
A. Respect for persons
B. Beneficence
C. Justice
D. Nonmaleficence
🟢D
🔴 RATIONALE: The Belmont Report identifies three core principles: respect for persons (autonomy),
beneficence (maximizing benefits and minimizing harms), and justice (fair distribution of benefits and burdens).
Nonmaleficence, while an important ethical principle in healthcare, is not one of the three primary principles
outlined in the Belmont Report.
4. A researcher is conducting a study with a sample size of 200 participants. Which type of sampling method
involves selecting participants based on their availability and willingness to participate?
, A. Simple random sampling
B. Stratified random sampling
C. Convenience sampling
D. Purposive sampling
🟢C
🔴 RATIONALE: Convenience sampling involves selecting participants who are readily available and willing to
participate. This method is common in nursing research due to practical constraints but is prone to selection
bias. Simple random and stratified random sampling are probability methods that enhance generalizability.
Purposive sampling is a non-probability method where participants are selected based on specific
characteristics.
5. In quantitative research, the term "internal validity" refers to:
A. The extent to which findings can be generalized to other populations
B. The degree to which the results are due to the independent variable and not confounding factors
C. The consistency and stability of measurement
D. The accuracy of the measurement instrument
🟢B
🔴 RATIONALE: Internal validity is the degree to which we can attribute the observed effects to the
independent variable rather than to extraneous or confounding variables. External validity (A) refers to
generalizability. Reliability (C) refers to consistency, and accuracy (D) is related to validity but is not the
definition of internal validity.
6. A nurse practitioner is appraising a qualitative study on the experiences of caregivers of Alzheimer's
patients. Which criterion is most appropriate for evaluating the trustworthiness of this study?
